2001, what have we learned about investigating these sorts of incidents? and eventhetechnologyitself,as it improved significantly since then? >> it really has. and i would say on almost every front, the improvements are really significant. what we have defended against extremely effectively, is a large-scale catastrophic attack like what we saw on 9/11. and these sorts of things, our intelligence, our coordination on investigation, across agencies, between the federal and local government, are vastly better. our technology for detecting explosives and follow-up investigations, vastly better. these sorts of attacks, as tragic as it was. 3 people killed, over 100 wounded, there's still of a relatively small scale. again, it's not surprising to me that you could have an attack like this and not see information either from the fbi or overseas, that was international terrorism, indicating there might be some threat, either generally or pointed at boston. the level of professionalism and understanding of how now to investigate this and the level of coordination, is markedly better. that w